Taken with 4-inch Traveler AP refractor at f/4.5 for 4 x 4-minute exposures at ISO800. Taken from Coonobarabran, Australia, July 26, 2006. Taken with Canon 20Da camera.
M19 globular cluster, in rich Milky Way star field of Ophiuchus near Antares. Shot May 5, 2013 from home with object very low in south in pre-dawn hours. This is a stack of just 2 exposures, 2 x 6 minutes at ISO 800 with the Canon 60Da and 130mm Astro-Physics refractor at f/6.
M20 Trifid Nebula and M21 star cluster above it, taken with 4-inch Astro-Physics Traveler refractor at f/6 with 6x7 field flattener and Hutech-modified Canon 5D camera for stack of 4 x 8 minute exposures at ISO 800. Taken from Coonabarabran, NSW, Australia, April 24, 2007. Some trailing from scope aimed straight up and axes wandering -- some guiding error introduced that fattened stars and some passing thin cloud added glows to stars.
